Cita APA (7th ed.)

BROWNSTONE D M. (1983). SALES PROFESSIONALS ADVISOR. JOHN WILEY AND SONS.

Cita Chicago (17th ed.)

BROWNSTONE D M. SALES PROFESSIONALS ADVISOR. NEW YORK: JOHN WILEY AND SONS, 1983.

Cita MLA (9th ed.)

BROWNSTONE D M. SALES PROFESSIONALS ADVISOR. JOHN WILEY AND SONS, 1983.